Saw-tooth tool.



,No. 709,355. Patented Sept .-,l6, m2,

T. OLSEN. SAW TOOTH 'I'OflL.

(Application filed Dec. 10, 1901.)

(no Model.)

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UNITED STATES PATENT TORBJORN OLSEN, OF MANISTEE, MICHIGAN.

SAW-TOOTH TOOL.

SPECIFICATION formingpart-f Letters Patent No. 709,355, dated September 16, 1902. Application filed December 10,1901. Serial No. 85,825. momma.)

To all whom it ntay concern.-

Be itknown that I, TORBJORN OLSEN, a citizen of the United States, and a resident of Manistee, in the county of Manistee and State of Michigan, have invented a new and Improved Saw-Tooth Tool, of which the following is a full, clear, and exact description.

This invention relates to improvements in tools for operating on the teeth of crosscutsaws, the object being to provide in a single and convenient tool a means for setting the teeth, a means for straightening the teeth, and a device for spreading or swaging the drag-teeth.

I will describe a saw-tooth tool embodying my invention and then point-out the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification,

in which similar characters of reference in.di-

cate corresponding parts in all the figures.

Figure 1 is a perspective view of a sawtooth tool embodying my invention. Fig. 2 is a side View thereof, partly in section. Fig. 3 isa side view, partly in section, showing the tool in position for spreading drag-teeth 5 and Fig. 4 shows the tool in position for straightening a tooth.

The tool comprises a bodyportion 1, having at one end an extension 2, provided with a longitudinally-disposed slot 3, through which a clamping-bolt. 4 passes. At one end this clamping-bolt 4 is provided with a thu mb-nut 5, and on the opposite side it is provided with a gage-block 6, designed to regulate the pitch or set of a saw-tooth when inserted in a slot 7, formed in the upper end of the extension 2. This slot 7, it will be noted, is arranged at a slight angle relatively to the face of the said extension. A lateral projection Sis provided with a slot or opening 9 to receive a saw-tooth for the purpose of straightening the same, as will be hereinafter described. The opposite end of the tool has spaced sections 10 and 11, designed to engage against opposite sides of a saw-blade while spreading or swaging the drag-teeth. At one side and at the end of the opening between the members 10 and 11 is a pointed tooth 12, designed to be engaged between the dragteeth or against the opposite points of a drag-tooth.

In operation in setting the saw the block 6 is to be adjusted along the extension 2 to the proper position, depending upon the pitch desired for the tooth. Then by inserting the tooth in the slot or opening 7, with the block 6 against one side of the blade, a sharp tap with a hammer or the like on the upper end of the tool will cause the bending or setting of the tooth. Should it be desired to straighten a tooth or to bend it to reduce the set, the tooth may be inserted in the opening 9, the tool serving as a lever to bend the tooth. In spreading the drag-teeth the'part 12 is to be inserted between the double points of said teeth, with the parts 10 and 11 engaging at op posite sides of the saw-blade, as indicated in Fig. 3. Then by a sharp tap on the upper end of the tool the said teeth will be spread or swaged.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A saw-tooth tool, comprising a body having an extension at one end, and a gage-block adjustable lengthwise along said extension, the said tool having a slot at the end of the extension for receiving a saw-tooth, substantially as specified.

2. A saw-tooth tool, comprising a body having an extension at one end provided. with a slot, a gage-block adjustable along said extension,a bolt passing from said block through the slot, and a set-nut on the bolt, the said tool having a slot at the end of the extension for receiving a saw-tooth, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

" TORBJQRN OLSEN.

Witnesses:

ALBERT ERICKSON, WALTER W. GIBB. 

